51601025 has 24 divisors (see below), whose sum is σ = 74173824. Its totient is φ = 34876800.

The previous prime is 51601021. The next prime is 51601057. The reversal of 51601025 is 52010615.

It is not a de Polignac number, because 51601025 - 2² = 51601021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51600988 and 51601006.

It is not an unprimeable number, because it can be changed into a prime (51601021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10349 + ... + 14501.

It is an arithmetic number, because the mean of its divisors is an integer number (3090576).

Almost surely, 2^51601025 is an apocalyptic number.

It is an amenable number.

51601025 is a deficient number, since it is larger than the sum of its proper divisors (22572799).

51601025 is a wasteful number, since it uses less digits than its factorization.

51601025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4241 (or 4236 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 51601025 is about 7183.3853439726. The cubic root of 51601025 is about 372.2940621055.

The spelling of 51601025 in words is "fifty-one million, six hundred one thousand, twenty-five".